Mariana Copper One operator
Controlled by
Mariana Copper LLC
MSHA operator ID: 0060043
- Fatalities
- 0
- Total incidents
- 81
- Mines on record
- 1
- Years on record
- 2005–2026
Compliance record
MSHA citations since 2006
111
citations
10
significant & substantial
$83,266
proposed penalties
$70,233
paid to date
84% of proposed penalties paid to date, a $13,033 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2005
91
inspections on record
2,705
inspection hours
4.1
citations per 100 inspection hours
ⓘ
This rate is recorded citations divided by MSHA inspection hours, per 100 hours. It reflects inspection effort, not mine size or production.111 citations across 2,705 inspection hours.
Source: MSHA inspections data, updated weekly.
Penalty disposition
ⓘ
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.$83K
proposed penalties
$70K
current assessed
$70K
paid to date
$0
outstanding
108 assessments are final orders; 7 contested dockets.
As of the most recent assessment on 2024-12-09.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Top causes
- HANDLING OF MATERIALS 25 non-fatal
- SLIP OR FALL OF PERSON 25 non-fatal
- HANDTOOLS (NONPOWERED) 13 non-fatal
- MACHINERY 8 non-fatal
- POWERED HAULAGE 3 non-fatal
- OTHER 2 non-fatal
Incident timeline
2026
2
2025
1
2024
6
2023
4
2022
3
2021
2
2018
2
2017
1
2016
1
2015
9
2014
3
2013
3
2012
8
2011
3
2010
6
2009
2
2007
12
2006
8
2005
5
Mines on record
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For insurers, brokers, and safety consultants
The full compliance file on Mariana Copper One
A dated report covering the 26-year penalty trail, line-item violation pattern, contest and docket posture, rate-normalized peer benchmark, and full fatality history. Delivered as a PDF with the underlying data as CSV.